ListPlot3D Not Showing Last Elements in The List

Question

I was using ListPlot3D and noticed that it wasn't plotting the last elements of my two dimensional list. (i.e. My 5x10 matrix was only showing a 4x9 set of data). However, when I use just an arrayplot it works beautifully. A Simple set of data I used is below:

    Temp = Table[0, {10}, {5}];
    Temp[[1, 3]] = 10;
    Temp[[2, 2 ;; 4]] = 10;
    Temp[[3 ;; 8, All]] = 10;
    Temp[[9, 2 ;; 4]] = 10;
    Temp[[10, 3]] = 10;

    ArrayPlot[Temp]

    ListPlot3D[Temp, InterpolationOrder -> 0, Mesh -> None]

When I use the 3D plot, only one point on the diamond show up and the far right side is missing. I specifically want InterpolationOrder = 0, because for my case I want it to be essentially a 3DArray plot.

That's the correct behaviour. ListPlot3D draws a surface connecting points. InterpolationOrder -> 0 means it interpolates between points with a flat, horizontal surface. You have $5\times 10$ points, so you have $4\times 9$ intervals between the points, so you have also $4\times 9$ surfaces interpolating between the points. This thread might give you ideas on how to proceed to obtain the desired result. — corey979, Nov 28 '16 at 23:26
Ah, I see. I was under the impression it would plot each point and just give it a volume of sorts! I appreciate the explanation! — Pfab, Nov 28 '16 at 23:43
Related Q/As: Height-dependent filling color in 3D Data Plots and How can I imitate the style of a certain 3D bar chart? — kglr, Nov 29 '16 at 00:12

kglr · Answer 1 · 2016-11-29T00:28:05.490

3

For the requirement

I want it to be essentially a 3DArray plot.

you can use DiscretePlot3D using your Temp to define a function foo:

ClearAll[foo];
(foo[##2] = #) & @@@ (Join @@ MapIndexed[Flatten@{##} &, Temp, {2}]);


DiscretePlot3D[foo[t, u], {t, 1, 10}, {u, 1, 5}, ExtentSize -> Full, 
 BoxRatios -> {1, 1/2, 1}]

Mathematica graphics

edited Nov 29 '16 at 00:28

answered Nov 29 '16 at 00:08

kglr

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ListPlot3D Not Showing Last Elements in The List

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